Pumice

Pumice

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Pumice stone is a form of volcanic rock that is naturally created when lava with a high water and gas content is discharged from a volcano. Pumice is a very light, porous rock that is often used as a grow medium in summer, as it's light colour repels heat. At Aquaponics WA and Hydroponic Xpress, we stock pumice in a number of sizes which include 1-4mm, 1-7mm, 4-20mm and 7-20mm.